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电工128种接线图

来源：baiyundou.net   日期：2024-06-29

电工们看看吧，上百种电路，不一定你们都懂一、日光灯类：























































二、断路器、接触器控制回路：
























三、电动机



































































延时






















四：热电偶


































五、电能表






























































六、其他






























电工电路中断路器和交流接触器接线图

断路器主要用作供电线路的保护开关、电动机及照明系统的控制开关，也可用于输、配电系统的某些重要环节。当线路发生短路、过载、欠压等故障时切断故障电路.
　　接触器在机床中用于频繁的接通和分断大电流的电路，具有动作迅速、操作方便和便于远距离控制的特点，但本身不具备短路保护和过载保护能力，因此必须与熔断器、热继电器配合使用.

　　接触器的接线方法有很多种，用的地方不一样，接线方法也不一样，这里指的是接触器的单一接法和多个接触器的接法，一般最常见的就是利用断路器、

按钮开关、热继电器、延时继电器、数字继电器等低压控制元器件产品组合。 其实，无论你用什么接触器其功能和工作原理都是一样，无非是外形不一样。

　　主触头：三个主触头（用来接主控制电路）。

　　辅助触头：现在常用的接触器有CJX1、CJX2接触器这两个产品在辅助触头上有区别，CJX1是由四组辅助触点，可分为2NO(常开）、2NC(常闭），而CJX2从9A-32A都是有一组辅助触头，可组装成 10表示常开；01表示常闭。

　　控制电源：这里就是我们说的线圈电压，正常使用的一般为220V,380V,特殊伏数有12V，24V，36V，48V，72V，110V等。


　　以下介绍电工施工中一些断路器和接触器控制回路接线图:

CJ10-10接触器控制电路

 

接触器接线图-电路实例讲解

 

接触器接线图

　　顺序启动、停止控制电路是在一个设备启动之后另一个设备才能启动运行的一种控制方法，常用于主、辅设备之间的控制，如上图当辅助设备的接触器KM1启动之后，主要设备的接触器KM2才能启动，主设备KM2不停止，辅助设备KM1也不能停止。但辅助设备在运行中应某原因停止运行（如FR1动作），主要设备也随之停止运行。

工作过程：

　　1、合上开关QF使线路的电源引入。

　　2、按辅助设备控制按钮SB2，接触器KM1线圈得电吸合，主触点闭合辅助设备运行，并且KM1辅助常开触点闭合实现自保。

　　3、按主设备控制按钮SB4，接触器KM2线圈得电吸合，主触点闭合主电机开始运行，并且KM2的辅助常开触点闭合实现自保。

　　4、KM2的另一个辅助常开触点将SB1短接，使SB1失去控制作用，无法先停止辅助设备KM1。

　　5、停止时只有先按SB3按钮，使KM2线圈失电辅助触点复位（触点断开），SB1按钮才起作用。

　　6、主电机的过流保护由FR2热继电器来完成。

　　7、辅助设备的过流保护由FR1热继电器来完成，但FR1动作后控制电路全断电，主、辅设备全停止运行。

常见故障；

　　1、KM1不能实现自锁：

　　分析处理：

　　1)、KM1的辅助接点接错，接成常闭接点，KM1吸合常闭断开，所以没有自锁。

　　2)、KM1常开和KM2常闭位置接错，KM1吸合式KM2还未吸合，KM2的辅助常开时断开的，所以KM1不能自锁。

　　2、不能顺序启动KM2可以先启动；

　　分析处理：

　　KM2先启动说明KM2的控制电路有电，检查FR2有电，这可能是FR2接点上口的7号线，错接到了FR1上口的3号线位置上了，这就使得KM2不受KM1控制而可以直接启动。

　　3、不能顺序停止KM1能先停止；

　　分析处理：

　　KM1能停止这说明SB1起作用，并接的KM2常开接点没起作用。分析原因有两种。

　　1)、 并接在SB1两端的KM2辅助常开接点未接。

　　2)、 并接在SB1两端的KM2辅助接点接成了常闭接点。

　　4、SB1不能停止；

　　分析处理：

　　检查线路发现KM1接触器用了两个辅助常开接点，KM2只用了一个辅助常开接点，SB1两端并接的不是KM2的常开而是KM1的常开，由于KM1自锁后常开闭合所以SB1不起作用。

两台电动机顺序起动、顺序停止电路接线示意图 

另介绍一种改进交流接触器接线方法:

　　交流接触器等电气设备的接线端子有很多是采用拱形垫片的。这种接线方法对一个接线端子接一个线头是不成问题的，但要同时接几个线头或粗细不等的线头时，就会产生接触不紧密、螺钉易松动的现象。尤其当接触器用于频繁吸合和释放时，接线端子上的螺钉更易松动。这样就使拱形垫片与线头之间的接触电阻增大，甚至脱离，造成电气设备不动作或发生单相运转等故障。针对上述情况，交流接触器接线端子是拱形垫片时的正确接线方法应是：

　　先在拱形垫片下加两个平垫圈，接线时先把细线或软线弯成一大半圆圈，套在两个平垫圈之间，然后把粗线压在拱形垫片下，把螺钉拧紧，这样无论怎样振动，都和接线端子只接一个线头一样牢固和安全。



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钮琪童3047电工接线方法是什么? -
江惠爸18412369291 ______ 电工接线方法有以下三种: 1、剖削导线绝缘层.可用剥线钳或钢丝钳剥削导线的绝缘层,也可用电工刀剖削塑料硬线的绝缘层.用电工刀剖削塑料硬线绝缘层时,电工刀刀口在需要剖削的导线上与导线成450夹角,斜切入绝缘层,然后以250度...

钮琪童3047国际电工的一开十孔插座怎么接线?每个插孔之间是不是内部并联的?还是需要跳线? -
江惠爸18412369291 ______ 将电源火线接在开关的L端,开关的L1与两个插座的L连接在一起,电源零线接在两个插座的N端,有保护地线就接在两个插座的地符号上.

钮琪童3047电工技术电.路.图接.线求解答.
江惠爸18412369291 ______ 四个按钮开关,两个线圈;SQ1常开点,串SQ2常闭点,一根电源L1串Y2辅助常闭点,最后进Y1线圈线圈出来接L2回路线,Y1的辅助常开点和刚才的SQ1常开点并联; 电源线LQ接SQ3常开点,串SQ4常闭点,串Y1常闭点,最后进Y2线圈,线圈出来接L2回路线.Y2线圈的辅助常开点和SQ3常开点并联.正反转就搞定了! 第一个打字的时候打错了,第二个对的,是按钮连锁,接触器互锁电路! 按钮连锁正反转,举个例子:其中一个(如正转)接触器启动按钮时,这个按钮的常闭触点先断开另一(如反转)接触器的回路后常开触点再接通这个接触器的回路

钮琪童3047电工接线图.如何看啊.看不懂啊.什么1 2 3线什么端指盘. 从哪里划分线路.求高手!!!! -
江惠爸18412369291 ______ 1、这就是一个典型的带正反转的电机原理图 2、当SB1按钮按下时,KM1线圈的电,主回路KM1触电吸合,控制回路KM1触电断开形成对反转的互锁,按照图中标注电机正转. 当SB2按钮按下时,KM2线圈的电,主回路KM2触电吸合,控制回路KM2触电断开形成对正转的互锁,按照图中标注电机反转. 3、电机在正转和反转互换时须按SB2上面的按钮SB(图中未标代号,在FR下侧,此时不管是KM1、KM2线圈均失电,主回路KM1、KM2触点分开停机),停机后再启动另外一种转动形式. 应该比较详细了!

钮琪童3047哪位大神电工说说怎么接线啊,最好有个详细的接线图或者详细说下接线
江惠爸18412369291 ______ 公牛墙壁三联开关接线图,红线接火线、

钮琪童3047求助一个电工帮忙告诉我接线图 -
江惠爸18412369291 ______ 1接插座一个孔(写着L的),5接插座另一个孔(写着N的).

钮琪童3047电工来看看这个接线图,上图,上接线电柜? -
江惠爸18412369291 ______ 星三角启动是有3个接触器,主接触器KM启动后得电运行,KMΔ 还有KMY,就是主题 星三角启动 用的,所以必须3个接触器; 你接的主线路是对的,重点是KMΔ连接的电机绕组线,U1和W2 在一相电上,V1和U2,W1和V2,用KMΔ连接;

钮琪童3047电工线路图 我有接线图可惜不知道从那里入手 -
江惠爸18412369291 ______ 我考过,先接主回路,线粗比较硬,做直比较简单.再接控制回路,照安装图(或原理图)一般回路从电源开始,经过的每一个元件在图上做好记号,并连线做好预留,控制线较细,一定捋直,否则要扣分.

钮琪童3047请问一下关于电工方面的知识.在三相四线中,有几种接法,希望能提供图片,谢谢 -
江惠爸18412369291 ______ 三相四线中,有2种接法,一种是Y型联接,一种是三角形△联接.Y型联接:ABC分别接UVW相,ZXY是ZY-YX两两串联三角形△联接:AZ,BX,CY,然后相线接入是是UAZ VBX WCY

（编辑：自媒体）
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